class_docstr: A plugin has two callbacks, one on request and one on response. Each
  callback, the plugin can get and set the respective messages. The plugin
  can also add a value to the database row which show up in queries
  to the /nboost/status path
docstr: Access request.
docstr_tok: ["Access","request","."]
code: def on_request(self, request: RequestDelegate, db_row: DatabaseRow):
      """Access request."""
  
file_path: nboost/nboost/plugins/__init__.py
imports: from nboost.delegates import RequestDelegate, ResponseDelegate
  from nboost.database import DatabaseRow
  from nboost.helpers import import_class
  from nboost.maps import MODULE_MAP
label_desc: Use image node_id 3 for calling the Plugin obj's underlying member method code with example usage: obj.on_request(request, db_row) without return types